No power up

I have a maxent mx-42xm11 that wont power up standby light is on when push power button green led comes on for a second ysus board clicks an shuts itself down if unplug ysus board and power up stays powered up could this be the problem the ysus board

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Ur power board is dead.Must know how to solders?Take the tv aparts check power board for capacitors for puff up or burst open must replaced these capacitors.Or replaced the whole power board.Tries Shopjimmy.com,Ebay.com.

If the television is still getting power, and even more diagnostically important is if you're still getting sound from the device, you've got a back light issue. All LCD TV's work on the premise that your image is displayed using a set of white tube back lights, think similarly to the ones you would have overhead in your kitchen at home. The issue is that if these lights ever burn out, you won't be able to see anything on your TV, like the situation you're in now. You have to get these replaced by a technician. The issue you're going to run into is that Maxent is no longer in business, you'll have to find a service depot in your area that can assist you. The repair is fairly common and shouldn't run you more than about $300-400 at the absolute most.